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Globals to compiler

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This commit is contained in:
Chuck Smith
2024-02-20 16:07:01 -05:00
parent 6ba2d3abe4
commit e8254fc996
7 changed files with 213 additions and 0 deletions
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49
compiler/compiler_test.go
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@@ -228,6 +228,55 @@ func TestConditionals(t *testing.T) {
runCompilerTests(t, tests)
}
func TestGlobalLetStatements(t *testing.T) {
tests := []compilerTestCase{
{
input: `
let one = 1;
let two = 2;
`,
expectedConstants: []interface{}{1, 2},
expectedInstructions: []code.Instructions{
code.Make(code.OpConstant, 0),
code.Make(code.OpSetGlobal, 0),
code.Make(code.OpConstant, 1),
code.Make(code.OpSetGlobal, 1),
},
},
{
input: `
let one = 1;
one;
`,
expectedConstants: []interface{}{1},
expectedInstructions: []code.Instructions{
code.Make(code.OpConstant, 0),
code.Make(code.OpSetGlobal, 0),
code.Make(code.OpGetGlobal, 0),
code.Make(code.OpPop),
},
},
{
input: `
let one = 1;
let two = one;
two;
`,
expectedConstants: []interface{}{1},
expectedInstructions: []code.Instructions{
code.Make(code.OpConstant, 0),
code.Make(code.OpSetGlobal, 0),
code.Make(code.OpGetGlobal, 0),
code.Make(code.OpSetGlobal, 1),
code.Make(code.OpGetGlobal, 1),
code.Make(code.OpPop),
},
},
}
runCompilerTests(t, tests)
}
func runCompilerTests(t *testing.T, tests []compilerTestCase) {
t.Helper()