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https://github.com/KhronosGroup/glslang
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Front-end: Add a function selector under implicit type conversion.
Use the new function selector for #version 400 and above, parameterized for the GLSL #version 400 selection rules. This can be used for both GLSL and HLSL, and other languages as well.
This commit is contained in:
John Kessenich
parent
0a04b4df02
commit
370234888d
@ -4,6 +4,103 @@ in double d; // ERROR, no doubles
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in dvec3 d3; // ERROR, no doubles
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in dmat4 dm4; // ERROR, no doubles
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// function selection under type conversion
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void foo1(double a, uint b) {}
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void foo1(double a, int b) {}
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void foo1(double a, float b) {}
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void foo1(double a, double b){}
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void foo2(double a, float b) {}
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void foo2(double a, double b){}
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void foo3(double a, float b) {}
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void foo3(float a, double b) {}
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void ftd( int, float, double) {}
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void ftd( uint, float, double) {}
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void ftd(float, double, double) {}
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void main()
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{
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double d;
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uint u;
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int i;
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float f;
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foo1(d, d);
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foo1(d, u);
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foo1(d, i);
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foo1(d, f);
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foo1(f, d);
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foo1(f, u);
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foo1(f, i);
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foo1(f, f);
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foo1(u, d);
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foo1(u, u);
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foo1(u, i);
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foo1(u, f);
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foo1(i, d);
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foo1(i, u);
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foo1(i, i);
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foo1(i, f);
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foo2(d, d);
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foo2(d, u);
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foo2(d, i);
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foo2(d, f);
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foo2(f, d);
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foo2(f, u);
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foo2(f, i);
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foo2(f, f);
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foo2(u, d);
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foo2(u, u);
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foo2(u, i);
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foo2(u, f);
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foo2(i, d);
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foo2(i, u);
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foo2(i, i);
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foo2(i, f);
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foo3(d, d); // ERROR, no match
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foo3(d, u);
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foo3(d, i);
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foo3(d, f);
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foo3(f, d);
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foo3(f, u); // ERROR, ambiguous
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foo3(f, i); // ERROR, ambiguous
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foo3(f, f); // ERROR, ambiguous
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foo3(u, d);
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foo3(u, u); // ERROR, ambiguous
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foo3(u, i); // ERROR, ambiguous
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foo3(u, f); // ERROR, ambiguous
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foo3(i, d);
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foo3(i, u); // ERROR, ambiguous
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foo3(i, i); // ERROR, ambiguous
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foo3(i, f); // ERROR, ambiguous
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ftd(i, f, f);
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ftd(u, f, f);
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}
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void itf(int, float, int);
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void itf(int, double, int);
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void tf()
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{
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double d;
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uint u;
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int i;
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float f;
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itf(i, i, i);
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itf(i, u, i);
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}
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@ -3,13 +3,288 @@ Warning, version 400 is not yet complete; most version-specific features are pre
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ERROR: 0:3: 'vertex-shader `double` type input' : not supported for this version or the enabled extensions
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ERROR: 0:4: 'vertex-shader `double` type input' : not supported for this version or the enabled extensions
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ERROR: 0:5: 'vertex-shader `double` type input' : not supported for this version or the enabled extensions
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ERROR: 3 compilation errors. No code generated.
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ERROR: 0:70: 'foo3' : no matching overloaded function found
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ERROR: 0:76: 'foo3' : ambiguous best function under implicit type conversion
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ERROR: 0:77: 'foo3' : ambiguous best function under implicit type conversion
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ERROR: 0:78: 'foo3' : ambiguous best function under implicit type conversion
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ERROR: 0:81: 'foo3' : ambiguous best function under implicit type conversion
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ERROR: 0:82: 'foo3' : ambiguous best function under implicit type conversion
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ERROR: 0:83: 'foo3' : ambiguous best function under implicit type conversion
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ERROR: 0:86: 'foo3' : ambiguous best function under implicit type conversion
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ERROR: 0:87: 'foo3' : ambiguous best function under implicit type conversion
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ERROR: 0:88: 'foo3' : ambiguous best function under implicit type conversion
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ERROR: 13 compilation errors. No code generated.
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Shader version: 400
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ERROR: node is still EOpNull!
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0:7 Function Definition: main( (global void)
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0:7 Function Parameters:
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0:8 Function Definition: foo1(d1;u1; (global void)
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0:8 Function Parameters:
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0:8 'a' (in double)
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0:8 'b' (in uint)
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0:9 Function Definition: foo1(d1;i1; (global void)
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0:9 Function Parameters:
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0:9 'a' (in double)
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0:9 'b' (in int)
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0:10 Function Definition: foo1(d1;f1; (global void)
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0:10 Function Parameters:
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0:10 'a' (in double)
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0:10 'b' (in float)
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0:11 Function Definition: foo1(d1;d1; (global void)
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0:11 Function Parameters:
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0:11 'a' (in double)
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0:11 'b' (in double)
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0:13 Function Definition: foo2(d1;f1; (global void)
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0:13 Function Parameters:
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0:13 'a' (in double)
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0:13 'b' (in float)
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0:14 Function Definition: foo2(d1;d1; (global void)
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0:14 Function Parameters:
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0:14 'a' (in double)
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0:14 'b' (in double)
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0:16 Function Definition: foo3(d1;f1; (global void)
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0:16 Function Parameters:
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0:16 'a' (in double)
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0:16 'b' (in float)
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0:17 Function Definition: foo3(f1;d1; (global void)
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0:17 Function Parameters:
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0:17 'a' (in float)
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0:17 'b' (in double)
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0:19 Function Definition: ftd(i1;f1;d1; (global void)
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0:19 Function Parameters:
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0:19 '' (in int)
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0:19 '' (in float)
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0:19 '' (in double)
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0:20 Function Definition: ftd(u1;f1;d1; (global void)
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0:20 Function Parameters:
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0:20 '' (in uint)
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0:20 '' (in float)
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0:20 '' (in double)
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0:21 Function Definition: ftd(f1;d1;d1; (global void)
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0:21 Function Parameters:
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0:21 '' (in float)
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0:21 '' (in double)
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0:21 '' (in double)
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0:23 Function Definition: main( (global void)
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0:23 Function Parameters:
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0:? Sequence
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0:30 Function Call: foo1(d1;d1; (global void)
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0:30 'd' (temp double)
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0:30 'd' (temp double)
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0:31 Function Call: foo1(d1;u1; (global void)
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0:31 'd' (temp double)
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0:31 'u' (temp uint)
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0:32 Function Call: foo1(d1;i1; (global void)
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0:32 'd' (temp double)
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0:32 'i' (temp int)
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0:33 Function Call: foo1(d1;f1; (global void)
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0:33 'd' (temp double)
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0:33 'f' (temp float)
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0:35 Function Call: foo1(d1;d1; (global void)
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0:35 Convert float to double (temp double)
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0:35 'f' (temp float)
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0:35 'd' (temp double)
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0:36 Function Call: foo1(d1;u1; (global void)
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0:36 Convert float to double (temp double)
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0:36 'f' (temp float)
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0:36 'u' (temp uint)
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0:37 Function Call: foo1(d1;i1; (global void)
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0:37 Convert float to double (temp double)
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0:37 'f' (temp float)
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0:37 'i' (temp int)
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0:38 Function Call: foo1(d1;f1; (global void)
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0:38 Convert float to double (temp double)
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0:38 'f' (temp float)
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0:38 'f' (temp float)
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0:40 Function Call: foo1(d1;d1; (global void)
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0:40 Convert uint to double (temp double)
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0:40 'u' (temp uint)
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0:40 'd' (temp double)
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0:41 Function Call: foo1(d1;u1; (global void)
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0:41 Convert uint to double (temp double)
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0:41 'u' (temp uint)
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0:41 'u' (temp uint)
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0:42 Function Call: foo1(d1;i1; (global void)
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0:42 Convert uint to double (temp double)
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0:42 'u' (temp uint)
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0:42 'i' (temp int)
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0:43 Function Call: foo1(d1;f1; (global void)
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0:43 Convert uint to double (temp double)
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0:43 'u' (temp uint)
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0:43 'f' (temp float)
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0:45 Function Call: foo1(d1;d1; (global void)
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0:45 Convert int to double (temp double)
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0:45 'i' (temp int)
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0:45 'd' (temp double)
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0:46 Function Call: foo1(d1;u1; (global void)
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0:46 Convert int to double (temp double)
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0:46 'i' (temp int)
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0:46 'u' (temp uint)
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0:47 Function Call: foo1(d1;i1; (global void)
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0:47 Convert int to double (temp double)
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0:47 'i' (temp int)
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0:47 'i' (temp int)
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0:48 Function Call: foo1(d1;f1; (global void)
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0:48 Convert int to double (temp double)
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0:48 'i' (temp int)
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0:48 'f' (temp float)
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0:50 Function Call: foo2(d1;d1; (global void)
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0:50 'd' (temp double)
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0:50 'd' (temp double)
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0:51 Function Call: foo2(d1;f1; (global void)
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0:51 'd' (temp double)
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0:51 Convert uint to float (temp float)
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0:51 'u' (temp uint)
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0:52 Function Call: foo2(d1;f1; (global void)
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0:52 'd' (temp double)
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0:52 Convert int to float (temp float)
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0:52 'i' (temp int)
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0:53 Function Call: foo2(d1;f1; (global void)
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0:53 'd' (temp double)
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0:53 'f' (temp float)
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0:55 Function Call: foo2(d1;d1; (global void)
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0:55 Convert float to double (temp double)
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0:55 'f' (temp float)
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0:55 'd' (temp double)
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0:56 Function Call: foo2(d1;f1; (global void)
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0:56 Convert float to double (temp double)
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0:56 'f' (temp float)
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0:56 Convert uint to float (temp float)
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0:56 'u' (temp uint)
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0:57 Function Call: foo2(d1;f1; (global void)
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0:57 Convert float to double (temp double)
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0:57 'f' (temp float)
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0:57 Convert int to float (temp float)
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0:57 'i' (temp int)
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0:58 Function Call: foo2(d1;f1; (global void)
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0:58 Convert float to double (temp double)
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0:58 'f' (temp float)
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0:58 'f' (temp float)
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0:60 Function Call: foo2(d1;d1; (global void)
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0:60 Convert uint to double (temp double)
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0:60 'u' (temp uint)
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0:60 'd' (temp double)
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0:61 Function Call: foo2(d1;f1; (global void)
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0:61 Convert uint to double (temp double)
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0:61 'u' (temp uint)
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0:61 Convert uint to float (temp float)
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0:61 'u' (temp uint)
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0:62 Function Call: foo2(d1;f1; (global void)
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0:62 Convert uint to double (temp double)
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0:62 'u' (temp uint)
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0:62 Convert int to float (temp float)
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0:62 'i' (temp int)
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0:63 Function Call: foo2(d1;f1; (global void)
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0:63 Convert uint to double (temp double)
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0:63 'u' (temp uint)
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0:63 'f' (temp float)
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0:65 Function Call: foo2(d1;d1; (global void)
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0:65 Convert int to double (temp double)
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0:65 'i' (temp int)
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0:65 'd' (temp double)
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0:66 Function Call: foo2(d1;f1; (global void)
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0:66 Convert int to double (temp double)
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0:66 'i' (temp int)
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0:66 Convert uint to float (temp float)
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0:66 'u' (temp uint)
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0:67 Function Call: foo2(d1;f1; (global void)
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0:67 Convert int to double (temp double)
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0:67 'i' (temp int)
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0:67 Convert int to float (temp float)
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0:67 'i' (temp int)
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0:68 Function Call: foo2(d1;f1; (global void)
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0:68 Convert int to double (temp double)
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0:68 'i' (temp int)
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0:68 'f' (temp float)
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0:70 Constant:
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0:70 0.000000
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0:71 Function Call: foo3(d1;f1; (global void)
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0:71 'd' (temp double)
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0:71 Convert uint to float (temp float)
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0:71 'u' (temp uint)
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0:72 Function Call: foo3(d1;f1; (global void)
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0:72 'd' (temp double)
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0:72 Convert int to float (temp float)
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0:72 'i' (temp int)
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0:73 Function Call: foo3(d1;f1; (global void)
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0:73 'd' (temp double)
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0:73 'f' (temp float)
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0:75 Function Call: foo3(f1;d1; (global void)
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0:75 'f' (temp float)
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0:75 'd' (temp double)
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0:76 Function Call: foo3(d1;f1; (global void)
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0:76 Convert float to double (temp double)
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0:76 'f' (temp float)
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0:76 Convert uint to float (temp float)
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0:76 'u' (temp uint)
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0:77 Function Call: foo3(d1;f1; (global void)
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0:77 Convert float to double (temp double)
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0:77 'f' (temp float)
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0:77 Convert int to float (temp float)
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0:77 'i' (temp int)
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0:78 Function Call: foo3(d1;f1; (global void)
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0:78 Convert float to double (temp double)
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0:78 'f' (temp float)
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0:78 'f' (temp float)
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0:80 Function Call: foo3(f1;d1; (global void)
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0:80 Convert uint to float (temp float)
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0:80 'u' (temp uint)
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0:80 'd' (temp double)
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0:81 Function Call: foo3(d1;f1; (global void)
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0:81 Convert uint to double (temp double)
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0:81 'u' (temp uint)
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0:81 Convert uint to float (temp float)
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0:81 'u' (temp uint)
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0:82 Function Call: foo3(d1;f1; (global void)
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0:82 Convert uint to double (temp double)
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0:82 'u' (temp uint)
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0:82 Convert int to float (temp float)
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0:82 'i' (temp int)
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0:83 Function Call: foo3(d1;f1; (global void)
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0:83 Convert uint to double (temp double)
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0:83 'u' (temp uint)
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0:83 'f' (temp float)
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0:85 Function Call: foo3(f1;d1; (global void)
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0:85 Convert int to float (temp float)
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0:85 'i' (temp int)
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0:85 'd' (temp double)
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0:86 Function Call: foo3(d1;f1; (global void)
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0:86 Convert int to double (temp double)
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0:86 'i' (temp int)
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0:86 Convert uint to float (temp float)
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0:86 'u' (temp uint)
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0:87 Function Call: foo3(d1;f1; (global void)
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0:87 Convert int to double (temp double)
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0:87 'i' (temp int)
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0:87 Convert int to float (temp float)
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0:87 'i' (temp int)
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0:88 Function Call: foo3(d1;f1; (global void)
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0:88 Convert int to double (temp double)
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0:88 'i' (temp int)
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0:88 'f' (temp float)
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0:90 Function Call: ftd(i1;f1;d1; (global void)
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0:90 'i' (temp int)
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0:90 'f' (temp float)
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0:90 Convert float to double (temp double)
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0:90 'f' (temp float)
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0:91 Function Call: ftd(u1;f1;d1; (global void)
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0:91 'u' (temp uint)
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0:91 'f' (temp float)
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0:91 Convert float to double (temp double)
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0:91 'f' (temp float)
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0:97 Function Definition: tf( (global void)
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0:97 Function Parameters:
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0:? Sequence
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0:104 Function Call: itf(i1;f1;i1; (global void)
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0:104 'i' (temp int)
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0:104 Convert int to float (temp float)
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0:104 'i' (temp int)
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0:104 'i' (temp int)
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0:105 Function Call: itf(i1;f1;i1; (global void)
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0:105 'i' (temp int)
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0:105 Convert uint to float (temp float)
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0:105 'u' (temp uint)
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0:105 'i' (temp int)
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0:? Linker Objects
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0:? 'd' (in double)
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0:? 'd3' (in 3-component vector of double)
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@ -23,8 +298,273 @@ Linked vertex stage:
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Shader version: 400
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ERROR: node is still EOpNull!
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0:7 Function Definition: main( (global void)
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0:7 Function Parameters:
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0:8 Function Definition: foo1(d1;u1; (global void)
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0:8 Function Parameters:
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0:8 'a' (in double)
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0:8 'b' (in uint)
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0:9 Function Definition: foo1(d1;i1; (global void)
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0:9 Function Parameters:
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0:9 'a' (in double)
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0:9 'b' (in int)
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0:10 Function Definition: foo1(d1;f1; (global void)
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0:10 Function Parameters:
|
||||
0:10 'a' (in double)
|
||||
0:10 'b' (in float)
|
||||
0:11 Function Definition: foo1(d1;d1; (global void)
|
||||
0:11 Function Parameters:
|
||||
0:11 'a' (in double)
|
||||
0:11 'b' (in double)
|
||||
0:13 Function Definition: foo2(d1;f1; (global void)
|
||||
0:13 Function Parameters:
|
||||
0:13 'a' (in double)
|
||||
0:13 'b' (in float)
|
||||
0:14 Function Definition: foo2(d1;d1; (global void)
|
||||
0:14 Function Parameters:
|
||||
0:14 'a' (in double)
|
||||
0:14 'b' (in double)
|
||||
0:16 Function Definition: foo3(d1;f1; (global void)
|
||||
0:16 Function Parameters:
|
||||
0:16 'a' (in double)
|
||||
0:16 'b' (in float)
|
||||
0:17 Function Definition: foo3(f1;d1; (global void)
|
||||
0:17 Function Parameters:
|
||||
0:17 'a' (in float)
|
||||
0:17 'b' (in double)
|
||||
0:19 Function Definition: ftd(i1;f1;d1; (global void)
|
||||
0:19 Function Parameters:
|
||||
0:19 '' (in int)
|
||||
0:19 '' (in float)
|
||||
0:19 '' (in double)
|
||||
0:20 Function Definition: ftd(u1;f1;d1; (global void)
|
||||
0:20 Function Parameters:
|
||||
0:20 '' (in uint)
|
||||
0:20 '' (in float)
|
||||
0:20 '' (in double)
|
||||
0:21 Function Definition: ftd(f1;d1;d1; (global void)
|
||||
0:21 Function Parameters:
|
||||
0:21 '' (in float)
|
||||
0:21 '' (in double)
|
||||
0:21 '' (in double)
|
||||
0:23 Function Definition: main( (global void)
|
||||
0:23 Function Parameters:
|
||||
0:? Sequence
|
||||
0:30 Function Call: foo1(d1;d1; (global void)
|
||||
0:30 'd' (temp double)
|
||||
0:30 'd' (temp double)
|
||||
0:31 Function Call: foo1(d1;u1; (global void)
|
||||
0:31 'd' (temp double)
|
||||
0:31 'u' (temp uint)
|
||||
0:32 Function Call: foo1(d1;i1; (global void)
|
||||
0:32 'd' (temp double)
|
||||
0:32 'i' (temp int)
|
||||
0:33 Function Call: foo1(d1;f1; (global void)
|
||||
0:33 'd' (temp double)
|
||||
0:33 'f' (temp float)
|
||||
0:35 Function Call: foo1(d1;d1; (global void)
|
||||
0:35 Convert float to double (temp double)
|
||||
0:35 'f' (temp float)
|
||||
0:35 'd' (temp double)
|
||||
0:36 Function Call: foo1(d1;u1; (global void)
|
||||
0:36 Convert float to double (temp double)
|
||||
0:36 'f' (temp float)
|
||||
0:36 'u' (temp uint)
|
||||
0:37 Function Call: foo1(d1;i1; (global void)
|
||||
0:37 Convert float to double (temp double)
|
||||
0:37 'f' (temp float)
|
||||
0:37 'i' (temp int)
|
||||
0:38 Function Call: foo1(d1;f1; (global void)
|
||||
0:38 Convert float to double (temp double)
|
||||
0:38 'f' (temp float)
|
||||
0:38 'f' (temp float)
|
||||
0:40 Function Call: foo1(d1;d1; (global void)
|
||||
0:40 Convert uint to double (temp double)
|
||||
0:40 'u' (temp uint)
|
||||
0:40 'd' (temp double)
|
||||
0:41 Function Call: foo1(d1;u1; (global void)
|
||||
0:41 Convert uint to double (temp double)
|
||||
0:41 'u' (temp uint)
|
||||
0:41 'u' (temp uint)
|
||||
0:42 Function Call: foo1(d1;i1; (global void)
|
||||
0:42 Convert uint to double (temp double)
|
||||
0:42 'u' (temp uint)
|
||||
0:42 'i' (temp int)
|
||||
0:43 Function Call: foo1(d1;f1; (global void)
|
||||
0:43 Convert uint to double (temp double)
|
||||
0:43 'u' (temp uint)
|
||||
0:43 'f' (temp float)
|
||||
0:45 Function Call: foo1(d1;d1; (global void)
|
||||
0:45 Convert int to double (temp double)
|
||||
0:45 'i' (temp int)
|
||||
0:45 'd' (temp double)
|
||||
0:46 Function Call: foo1(d1;u1; (global void)
|
||||
0:46 Convert int to double (temp double)
|
||||
0:46 'i' (temp int)
|
||||
0:46 'u' (temp uint)
|
||||
0:47 Function Call: foo1(d1;i1; (global void)
|
||||
0:47 Convert int to double (temp double)
|
||||
0:47 'i' (temp int)
|
||||
0:47 'i' (temp int)
|
||||
0:48 Function Call: foo1(d1;f1; (global void)
|
||||
0:48 Convert int to double (temp double)
|
||||
0:48 'i' (temp int)
|
||||
0:48 'f' (temp float)
|
||||
0:50 Function Call: foo2(d1;d1; (global void)
|
||||
0:50 'd' (temp double)
|
||||
0:50 'd' (temp double)
|
||||
0:51 Function Call: foo2(d1;f1; (global void)
|
||||
0:51 'd' (temp double)
|
||||
0:51 Convert uint to float (temp float)
|
||||
0:51 'u' (temp uint)
|
||||
0:52 Function Call: foo2(d1;f1; (global void)
|
||||
0:52 'd' (temp double)
|
||||
0:52 Convert int to float (temp float)
|
||||
0:52 'i' (temp int)
|
||||
0:53 Function Call: foo2(d1;f1; (global void)
|
||||
0:53 'd' (temp double)
|
||||
0:53 'f' (temp float)
|
||||
0:55 Function Call: foo2(d1;d1; (global void)
|
||||
0:55 Convert float to double (temp double)
|
||||
0:55 'f' (temp float)
|
||||
0:55 'd' (temp double)
|
||||
0:56 Function Call: foo2(d1;f1; (global void)
|
||||
0:56 Convert float to double (temp double)
|
||||
0:56 'f' (temp float)
|
||||
0:56 Convert uint to float (temp float)
|
||||
0:56 'u' (temp uint)
|
||||
0:57 Function Call: foo2(d1;f1; (global void)
|
||||
0:57 Convert float to double (temp double)
|
||||
0:57 'f' (temp float)
|
||||
0:57 Convert int to float (temp float)
|
||||
0:57 'i' (temp int)
|
||||
0:58 Function Call: foo2(d1;f1; (global void)
|
||||
0:58 Convert float to double (temp double)
|
||||
0:58 'f' (temp float)
|
||||
0:58 'f' (temp float)
|
||||
0:60 Function Call: foo2(d1;d1; (global void)
|
||||
0:60 Convert uint to double (temp double)
|
||||
0:60 'u' (temp uint)
|
||||
0:60 'd' (temp double)
|
||||
0:61 Function Call: foo2(d1;f1; (global void)
|
||||
0:61 Convert uint to double (temp double)
|
||||
0:61 'u' (temp uint)
|
||||
0:61 Convert uint to float (temp float)
|
||||
0:61 'u' (temp uint)
|
||||
0:62 Function Call: foo2(d1;f1; (global void)
|
||||
0:62 Convert uint to double (temp double)
|
||||
0:62 'u' (temp uint)
|
||||
0:62 Convert int to float (temp float)
|
||||
0:62 'i' (temp int)
|
||||
0:63 Function Call: foo2(d1;f1; (global void)
|
||||
0:63 Convert uint to double (temp double)
|
||||
0:63 'u' (temp uint)
|
||||
0:63 'f' (temp float)
|
||||
0:65 Function Call: foo2(d1;d1; (global void)
|
||||
0:65 Convert int to double (temp double)
|
||||
0:65 'i' (temp int)
|
||||
0:65 'd' (temp double)
|
||||
0:66 Function Call: foo2(d1;f1; (global void)
|
||||
0:66 Convert int to double (temp double)
|
||||
0:66 'i' (temp int)
|
||||
0:66 Convert uint to float (temp float)
|
||||
0:66 'u' (temp uint)
|
||||
0:67 Function Call: foo2(d1;f1; (global void)
|
||||
0:67 Convert int to double (temp double)
|
||||
0:67 'i' (temp int)
|
||||
0:67 Convert int to float (temp float)
|
||||
0:67 'i' (temp int)
|
||||
0:68 Function Call: foo2(d1;f1; (global void)
|
||||
0:68 Convert int to double (temp double)
|
||||
0:68 'i' (temp int)
|
||||
0:68 'f' (temp float)
|
||||
0:70 Constant:
|
||||
0:70 0.000000
|
||||
0:71 Function Call: foo3(d1;f1; (global void)
|
||||
0:71 'd' (temp double)
|
||||
0:71 Convert uint to float (temp float)
|
||||
0:71 'u' (temp uint)
|
||||
0:72 Function Call: foo3(d1;f1; (global void)
|
||||
0:72 'd' (temp double)
|
||||
0:72 Convert int to float (temp float)
|
||||
0:72 'i' (temp int)
|
||||
0:73 Function Call: foo3(d1;f1; (global void)
|
||||
0:73 'd' (temp double)
|
||||
0:73 'f' (temp float)
|
||||
0:75 Function Call: foo3(f1;d1; (global void)
|
||||
0:75 'f' (temp float)
|
||||
0:75 'd' (temp double)
|
||||
0:76 Function Call: foo3(d1;f1; (global void)
|
||||
0:76 Convert float to double (temp double)
|
||||
0:76 'f' (temp float)
|
||||
0:76 Convert uint to float (temp float)
|
||||
0:76 'u' (temp uint)
|
||||
0:77 Function Call: foo3(d1;f1; (global void)
|
||||
0:77 Convert float to double (temp double)
|
||||
0:77 'f' (temp float)
|
||||
0:77 Convert int to float (temp float)
|
||||
0:77 'i' (temp int)
|
||||
0:78 Function Call: foo3(d1;f1; (global void)
|
||||
0:78 Convert float to double (temp double)
|
||||
0:78 'f' (temp float)
|
||||
0:78 'f' (temp float)
|
||||
0:80 Function Call: foo3(f1;d1; (global void)
|
||||
0:80 Convert uint to float (temp float)
|
||||
0:80 'u' (temp uint)
|
||||
0:80 'd' (temp double)
|
||||
0:81 Function Call: foo3(d1;f1; (global void)
|
||||
0:81 Convert uint to double (temp double)
|
||||
0:81 'u' (temp uint)
|
||||
0:81 Convert uint to float (temp float)
|
||||
0:81 'u' (temp uint)
|
||||
0:82 Function Call: foo3(d1;f1; (global void)
|
||||
0:82 Convert uint to double (temp double)
|
||||
0:82 'u' (temp uint)
|
||||
0:82 Convert int to float (temp float)
|
||||
0:82 'i' (temp int)
|
||||
0:83 Function Call: foo3(d1;f1; (global void)
|
||||
0:83 Convert uint to double (temp double)
|
||||
0:83 'u' (temp uint)
|
||||
0:83 'f' (temp float)
|
||||
0:85 Function Call: foo3(f1;d1; (global void)
|
||||
0:85 Convert int to float (temp float)
|
||||
0:85 'i' (temp int)
|
||||
0:85 'd' (temp double)
|
||||
0:86 Function Call: foo3(d1;f1; (global void)
|
||||
0:86 Convert int to double (temp double)
|
||||
0:86 'i' (temp int)
|
||||
0:86 Convert uint to float (temp float)
|
||||
0:86 'u' (temp uint)
|
||||
0:87 Function Call: foo3(d1;f1; (global void)
|
||||
0:87 Convert int to double (temp double)
|
||||
0:87 'i' (temp int)
|
||||
0:87 Convert int to float (temp float)
|
||||
0:87 'i' (temp int)
|
||||
0:88 Function Call: foo3(d1;f1; (global void)
|
||||
0:88 Convert int to double (temp double)
|
||||
0:88 'i' (temp int)
|
||||
0:88 'f' (temp float)
|
||||
0:90 Function Call: ftd(i1;f1;d1; (global void)
|
||||
0:90 'i' (temp int)
|
||||
0:90 'f' (temp float)
|
||||
0:90 Convert float to double (temp double)
|
||||
0:90 'f' (temp float)
|
||||
0:91 Function Call: ftd(u1;f1;d1; (global void)
|
||||
0:91 'u' (temp uint)
|
||||
0:91 'f' (temp float)
|
||||
0:91 Convert float to double (temp double)
|
||||
0:91 'f' (temp float)
|
||||
0:97 Function Definition: tf( (global void)
|
||||
0:97 Function Parameters:
|
||||
0:? Sequence
|
||||
0:104 Function Call: itf(i1;f1;i1; (global void)
|
||||
0:104 'i' (temp int)
|
||||
0:104 Convert int to float (temp float)
|
||||
0:104 'i' (temp int)
|
||||
0:104 'i' (temp int)
|
||||
0:105 Function Call: itf(i1;f1;i1; (global void)
|
||||
0:105 'i' (temp int)
|
||||
0:105 Convert uint to float (temp float)
|
||||
0:105 'u' (temp uint)
|
||||
0:105 'i' (temp int)
|
||||
0:? Linker Objects
|
||||
0:? 'd' (in double)
|
||||
0:? 'd3' (in 3-component vector of double)
|
||||
|
||||
@ -4895,10 +4895,239 @@ const TFunction* TParseContext::findFunction120(const TSourceLoc& loc, const TFu
|
||||
}
|
||||
|
||||
// Function finding algorithm for desktop version 400 and above.
|
||||
//
|
||||
// "When function calls are resolved, an exact type match for all the arguments
|
||||
// is sought. If an exact match is found, all other functions are ignored, and
|
||||
// the exact match is used. If no exact match is found, then the implicit
|
||||
// conversions in section 4.1.10 “Implicit Conversions” will be applied to find
|
||||
// a match. Mismatched types on input parameters (in or inout or default) must
|
||||
// have a conversion from the calling argument type to the formal parameter type.
|
||||
// Mismatched types on output parameters (out or inout) must have a conversion
|
||||
// from the formal parameter type to the calling argument type.
|
||||
//
|
||||
// "If implicit conversions can be used to find more than one matching function,
|
||||
// a single best-matching function is sought. To determine a best match, the
|
||||
// conversions between calling argument and formal parameter types are compared
|
||||
// for each function argument and pair of matching functions. After these
|
||||
// comparisons are performed, each pair of matching functions are compared.
|
||||
// A function declaration A is considered a better match than function
|
||||
// declaration B if
|
||||
//
|
||||
// * for at least one function argument, the conversion for that argument in A
|
||||
// is better than the corresponding conversion in B; and
|
||||
// * there is no function argument for which the conversion in B is better than
|
||||
// the corresponding conversion in A.
|
||||
//
|
||||
// "If a single function declaration is considered a better match than every
|
||||
// other matching function declaration, it will be used. Otherwise, a
|
||||
// compile-time semantic error for an ambiguous overloaded function call occurs.
|
||||
//
|
||||
// "To determine whether the conversion for a single argument in one match is
|
||||
// better than that for another match, the following rules are applied, in order:
|
||||
//
|
||||
// 1. An exact match is better than a match involving any implicit conversion.
|
||||
// 2. A match involving an implicit conversion from float to double is better
|
||||
// than a match involving any other implicit conversion.
|
||||
// 3. A match involving an implicit conversion from either int or uint to float
|
||||
// is better than a match involving an implicit conversion from either int
|
||||
// or uint to double.
|
||||
//
|
||||
// "If none of the rules above apply to a particular pair of conversions, neither
|
||||
// conversion is considered better than the other."
|
||||
//
|
||||
const TFunction* TParseContext::findFunction400(const TSourceLoc& loc, const TFunction& call, bool& builtIn)
|
||||
{
|
||||
// TODO: 4.00 functionality: findFunction400()
|
||||
return findFunction120(loc, call, builtIn);
|
||||
// first, look for an exact match
|
||||
TSymbol* symbol = symbolTable.find(call.getMangledName(), &builtIn);
|
||||
if (symbol)
|
||||
return symbol->getAsFunction();
|
||||
|
||||
// no exact match, use the generic selector, parameterized by the GLSL rules
|
||||
|
||||
// create list of candidates to send
|
||||
TVector<const TFunction*> candidateList;
|
||||
symbolTable.findFunctionNameList(call.getMangledName(), candidateList, builtIn);
|
||||
|
||||
// can 'from' convert to 'to'?
|
||||
auto convertible = [this](const TType& from, const TType& to) {
|
||||
if (from == to)
|
||||
return true;
|
||||
if (from.isArray() || to.isArray() || ! from.sameElementShape(to))
|
||||
return false;
|
||||
return intermediate.canImplicitlyPromote(from.getBasicType(), to.getBasicType());
|
||||
};
|
||||
|
||||
// Is 'to2' a better conversion than 'to1'?
|
||||
// Ties should not be considered as better.
|
||||
// Assumes 'convertible' already said true.
|
||||
auto better = [](const TType& from, const TType& to1, const TType& to2) {
|
||||
// 1. exact match
|
||||
if (from == to2)
|
||||
return from != to1;
|
||||
if (from == to1)
|
||||
return false;
|
||||
|
||||
// 2. float -> double is better
|
||||
if (from.getBasicType() == EbtFloat) {
|
||||
if (to2.getBasicType() == EbtDouble && to1.getBasicType() != EbtDouble)
|
||||
return true;
|
||||
}
|
||||
|
||||
// 3. -> float is better than -> double
|
||||
return to2.getBasicType() == EbtFloat && to1.getBasicType() == EbtDouble;
|
||||
};
|
||||
|
||||
// for ambiguity reporting
|
||||
bool tie = false;
|
||||
|
||||
// send to the generic selector
|
||||
const TFunction* bestMatch = selectFunction(candidateList, call, convertible, better, tie);
|
||||
|
||||
if (bestMatch == nullptr)
|
||||
error(loc, "no matching overloaded function found", call.getName().c_str(), "");
|
||||
else if (tie)
|
||||
error(loc, "ambiguous best function under implicit type conversion", call.getName().c_str(), "");
|
||||
|
||||
return bestMatch;
|
||||
}
|
||||
|
||||
// Select the best matching function for 'call' from 'candidateList'.
|
||||
//
|
||||
// Assumptions
|
||||
//
|
||||
// There is no exact match, so a selection algorithm needs to run. That is, the
|
||||
// language-specific handler should should check for exact match first, to
|
||||
// decide what to do, before calling this selector.
|
||||
//
|
||||
// Input
|
||||
//
|
||||
// * list of candidate signatures to select from
|
||||
// * the call
|
||||
// * a predicate function convertible(from, to) that says whether or not type
|
||||
// 'from' can implicitly convert to type 'to' (it includes the case of what
|
||||
// the calling language would consider a matching type with no conversion
|
||||
// needed)
|
||||
// * a predicate function better(from1, from2, to1, to2) that says whether or
|
||||
// not a conversion from from <-> to2 is considered better than a conversion
|
||||
// from <-> to1 (both in and out directions need testing, as declared by the
|
||||
// formal parameter)
|
||||
//
|
||||
// Output
|
||||
//
|
||||
// * best matching candidate (or none, if no viable candidates found)
|
||||
// * whether there was a tie for the best match (ambiguous overload selection,
|
||||
// caller's choice for how to report)
|
||||
//
|
||||
const TFunction* TParseContextBase::selectFunction(
|
||||
TVector<const TFunction*> candidateList,
|
||||
const TFunction& call,
|
||||
std::function<bool(const TType& from, const TType& to)> convertible,
|
||||
std::function<bool(const TType& from, const TType& to1, const TType& to2)> better,
|
||||
/* output */ bool& tie)
|
||||
{
|
||||
//
|
||||
// Operation
|
||||
//
|
||||
// 1. Prune the input list of candidates down to a list of viable candidates,
|
||||
// where each viable candidate has
|
||||
//
|
||||
// * at least as many parameters as there are calling arguments, with any
|
||||
// remainding parameters being optional or having default values
|
||||
// * each parameter is true under convertible(A, B), where A is the calling
|
||||
// type for in and B is the formal type, and in addition, for out B is the
|
||||
// calling type and A is the formal type
|
||||
//
|
||||
// 2. If there are no viable candidates, return with no match.
|
||||
//
|
||||
// 3. If there is only one viable candidate, it is the best match.
|
||||
//
|
||||
// 4. If there are multiple viable candidates, select the first viable candidate
|
||||
// as the incumbent. Compare the incumbent to the next viable candidate, and if
|
||||
// that candidate is better (bullets below), make it the incumbent. Repeat, with
|
||||
// a linear walk through the viable candidate list. The final incumbent will be
|
||||
// returned as the best match. A viable candidate is better than the incumbent if
|
||||
//
|
||||
// * it has a function argument with a better(...) conversion than the incumbent,
|
||||
// for all directions needed by in and out
|
||||
// * the incumbent has no argument with a better(...) conversion then the
|
||||
// candidate, for either in or out (as needed)
|
||||
//
|
||||
// 5. Check for ambiguity by comparing the best match against all other viable
|
||||
// candidates. If any other viable candidate has a function argument with a
|
||||
// better(...) conversion than the best candidate (for either in or out
|
||||
// directions), return that there was a tie for best.
|
||||
//
|
||||
|
||||
tie = false;
|
||||
|
||||
// 1. prune to viable...
|
||||
TVector<const TFunction*> viableCandidates;
|
||||
for (auto it = candidateList.begin(); it != candidateList.end(); ++it) {
|
||||
const TFunction& candidate = *(*it);
|
||||
|
||||
// to even be a potential match, number of arguments has to match
|
||||
if (call.getParamCount() != candidate.getParamCount())
|
||||
continue;
|
||||
|
||||
// see if arguments are convertible
|
||||
bool viable = true;
|
||||
for (int param = 0; param < candidate.getParamCount(); ++param) {
|
||||
if (candidate[param].type->getQualifier().isParamInput()) {
|
||||
if (! convertible(*call[param].type, *candidate[param].type)) {
|
||||
viable = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (candidate[param].type->getQualifier().isParamOutput()) {
|
||||
if (! convertible(*candidate[param].type, *call[param].type)) {
|
||||
viable = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (viable)
|
||||
viableCandidates.push_back(&candidate);
|
||||
}
|
||||
|
||||
// 2. none viable...
|
||||
if (viableCandidates.size() == 0)
|
||||
return nullptr;
|
||||
|
||||
// 3. only one viable...
|
||||
if (viableCandidates.size() == 1)
|
||||
return viableCandidates.front();
|
||||
|
||||
// 4. find best...
|
||||
auto betterParam = [&call, &better](const TFunction& can1, const TFunction& can2){
|
||||
// is call -> can2 better than call -> can1 for any parameter
|
||||
bool hasBetterParam = false;
|
||||
for (int param = 0; param < call.getParamCount(); ++param) {
|
||||
if (better(*call[param].type, *can1[param].type, *can2[param].type)) {
|
||||
hasBetterParam = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
return hasBetterParam;
|
||||
};
|
||||
|
||||
const TFunction* incumbent = viableCandidates.front();
|
||||
for (auto it = viableCandidates.begin() + 1; it != viableCandidates.end(); ++it) {
|
||||
const TFunction& candidate = *(*it);
|
||||
if (betterParam(*incumbent, candidate) && ! betterParam(candidate, *incumbent))
|
||||
incumbent = &candidate;
|
||||
}
|
||||
|
||||
// 5. ambiguity...
|
||||
for (auto it = viableCandidates.begin(); it != viableCandidates.end(); ++it) {
|
||||
if (incumbent == *it)
|
||||
continue;
|
||||
const TFunction& candidate = *(*it);
|
||||
if (betterParam(*incumbent, candidate))
|
||||
tie = true;
|
||||
}
|
||||
|
||||
return incumbent;
|
||||
}
|
||||
|
||||
// When a declaration includes a type, but not a variable name, it can be
|
||||
|
||||
@ -142,6 +142,12 @@ protected:
|
||||
std::function<void(int, int, const char*)> versionCallback;
|
||||
std::function<void(int, const char*, const char*)> extensionCallback;
|
||||
std::function<void(int, const char*)> errorCallback;
|
||||
|
||||
// see implementation for detail
|
||||
const TFunction* selectFunction(TVector<const TFunction*>, const TFunction&,
|
||||
std::function<bool(const TType&, const TType&)>,
|
||||
std::function<bool(const TType&, const TType&, const TType&)>,
|
||||
/* output */ bool& tie);
|
||||
};
|
||||
|
||||
//
|
||||
|
||||
Loading…
Reference in New Issue
Block a user